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Pipeline Corrosion Leaks the Importance of AC Mitigation

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When power lines meet pipelines, corrosion can take place. The placement of the pipes may not mean anything to an average person, but experts know that this could put the quality of any pipeline at risk. As such, it’s best to know more about what it does and when to seek the assistance of professionals.

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Pipeline Corrosion Leaks the Importance of AC Mitigation

  1. 1. Pipeline Corrosion Leaks: The Importance of AC Mitigation Mears Integrity Solutions Houston, Texas (832) 634-2802
  2. 2. When power lines meet pipelines, corrosion can take place. The placement of the pipes may not mean anything to an average person, but experts know that this could put the quality of any pipeline at risk. As such, it’s best to know more about what it does and when to seek the assistance of professionals. High-voltage AC Power Line Risks When pipelines run within the vicinity of a high-voltage AC power line, electrical induction can occur. The pipeline will act as the secondary winding of transformers if the soil resistivity is low and the voltage driving current along the AC is high. Pipe lines suffer from corrosion holes when the AC current finds a way to get off the pipes and go back to its power grid. AC-induced corrosions can put the pipelines and the people working on them at risk.
  3. 3. How to Identify AC Corrosion An ideal way to identify AC corrosion is to check the areas where the pipeline and induced AC are likely to connect, such as crossings of HVTL or parallelisms. Measure the levels of induced AC within a certain period, like a minimum of seven days for 24 hours. The results may differ depending on the demand electricity consumers put on the grid, though. Households tend to use more electricity at night, especially when cooking and watching television, so the electrical load and induced AC might also increase.
  4. 4. The Importance of AC Mitigation By hiring experts in AC mitigation, there is less worry about the design, installation, and maintenance of the pipelines. They can help reduce the induced AC on the system, making it safe. They install grounding techniques, like rods with decouplers for linear zinc ribbon and DC isolation, to the pipeline. From construction to engineering and field surveys, it’s best to have regular AC mitigation to make sure that the pipelines are in good condition and will last longer. Sources: http://www.desfa.gr/files/dimosieyseis/2003kioupis.pdf http://www.cathodic.co.uk/files/1257495366Pipeline%20Corrosion%20Risks%20Associat ed%20With%20AC%20Voltages.pdf http://www.mearsintegrity.com/pipeline/ac-mitigation/

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